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How to find what code is run by a button or element in Chrome using Developer Tools
...Query's abstraction and functionality, a lot of hoops have to be jumped in order to get to the meat of the event. I have set up this jsFiddle to demonstrate the work.
1. Setting up the Event Listener Breakpoint
You were close on this one.
Open the Chrome Dev Tools (F12), and go to the Sources ...
Chaining multiple MapReduce jobs in Hadoop
...ntifying dependent things and 'executing' them in dependency (topological) order.
Or you can use a Cascade (and MapReduceFlow) in Cascading ( http://www.cascading.org/ ). A future version will support Riffle annotations, but it works great now with raw MR JobConf jobs.
A variant on this is to not ...
How to keep Maven profiles which are activeByDefault active even if another profile gets activated?
...
Profiles are a good way to bring some order into POM.
Especially if you use multiple executions of the same plugin for different purposes.
Using files:
<profile>
<id>alwaysActive</id>
<activation>
<file><exists&...
How can you diff two pipelines in Bash?
...ting (like comm does) nor process substitution like the above examples, is orders or magnitude faster than grep -f and supports infinite streams.
The test example I propose would be written like this in sd:
seq 100 | sd 'seq 10 20 && sleep 5 && seq 20 30'
But the difference is t...
Database Design for Revisions?
...key or clustered key? What key we can add in the Design 1 history table in order to make the search quicker?
– gotqn
Apr 14 '12 at 8:09
...
UITableView set to static cells. Is it possible to hide some of the cells programmatically?
...ovide our own data source, which delegates to the UITableViewController in order to get the static cells.
Easiest is to subclass UITableViewController, and override all methods which need to behave differently when hiding cells.
In the simplest case (single section table, all cells have the same h...
How to delete or add column in SQLITE?
...is case, after doing this sequence one must call PRAGMA foreign_keys=ON in order to re-enable foreign keys.
– PazO
Apr 11 '18 at 9:12
...
How to Get the Title of a HTML Page Displayed in UIWebView?
...h is ) because the location is by the first character of the string.
So in order to offset that, we just added the length of the string
Now keep in mind this code is not tested.. if there are any problems it might be a spelling error, or that I didn't/did add a pointer when i wasn't supposed to.
I...
Two single-column indexes vs one two-column index in MySQL?
...he first three columns, and so on. If you specify the columns in the right order in the index definition, a single composite index can speed up several kinds of queries on the same table." - Multiple-Column Indexes
– AlikElzin-kilaka
Sep 9 '18 at 4:46
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Fast way to get image dimensions (not filesize)
... as you need to understand the file format (or use a library of course) in order to know how to read it. You can probably find some code that will in most cases give a rough estimate of the dimensions without reading the whole file, but I think some filetypes may require you to read the whole file t...